實驗環境 springboot1.5.9 ,junit4.12以上

添加pom依賴

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</
 
artifactId>
        <version>1.5.6.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency
 
>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <
 
groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

編寫測試代碼

@RunWith(SpringRunner.class)
@SpringBootTest(classes = StartUpApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class HelloControllerTest {

    /**
     * @LocalServerPort 提供了 @Value("${local.server.port}") 的代替
     */
    @LocalServerPort
    private int port;

    private URL base;

    @Autowired
    private TestRestTemplate restTemplate;

    @Before
    public void setUp() throws Exception {
        String url = String.format("http://localhost:%d/", port);
        System.out.println(String.format("port is : [%d]", port));
        this.base = new URL(url);
    }

    /**
     * 向"/test"地址發送請求，並打印返回結果
     * @throws Exception
     */
    @Test
    public void test1() throws Exception {

        ResponseEntity<String> response = this.restTemplate.getForEntity(
                this.base.toString() + "/test", String.class, "");
        System.out.println(String.format("測試結果為：%s", response.getBody()));
    }

參考文章 https://blog.csdn.net/limenghua9112/article/details/79694849

SpringBoot 單元測試